Solve the problem.A twin-engined aircraft can fly 672 miles from city A to city B in 3 hours with the wind and make the return trip in 7 hours against the wind. What is the speed of the wind?
A. 96 mph
B. 80 mph
C. 64 mph
D. 48 mph
Answer: C
Mathematics
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Solve the problem.Solve for a: 
A. a = 
B. a = 1
C. a = 
D. a = 
Mathematics
Graph the conic section.x2 - 6x - 4y + 37 = 0
A. 
B. 
C. 
D. 
Mathematics
Find the indicated matrix.Let A = 
and B = 
. Find AB.
A. not defined
B. 
C. 
D. 
Mathematics
Do the operation and express the answer in a + bi form.
?
?
A. 28 - 5i B. - 28 + 6 i C. - 5 + 6 i D. 5 - 6 i E. 28 + 6 i
Mathematics